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OWC 64GB DDR4 2666 MHz SO-DIMM Memory Upgrade (2 x 32GB)

BH #OW2666D4S64P • MFR #OWC2666DDR4S64P
 169 reviews
OWC
OWC 64GB DDR4 2666 MHz SO-DIMM Memory Upgrade (2 x 32GB)
Key Features
  • 64GB (2 x 32GB) Capacity
  • 2666 MHz Clock Speed
  • PC4-21300
  • 260-Pin SO-DIMM
Boost the memory capacity of your supported Mac or Windows PC with the 64GB DDR4 2666 MHz SO-DIMM Memory Upgrade from OWC. Compatible with 260-pin SO-DIMM slots, this 64GB DDR4 memory upgrade comes in two 32GB modules and has a 2666 MHz clock speed, a bus speed of PC4-21300, and a low-noise, 8-layer PCB design. Operating at 1.2V, this memory upgrade is designed to meet or exceed Apple's and Intel's specifications.
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$129.99
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OWC DDR4 2666 MHz SO-DIMM Overview

Boost the memory capacity of your supported Mac or Windows PC with the 64GB DDR4 2666 MHz SO-DIMM Memory Upgrade from OWC. Compatible with 260-pin SO-DIMM slots, this 64GB DDR4 memory upgrade comes in two 32GB modules and has a 2666 MHz clock speed, a bus speed of PC4-21300, and a low-noise, 8-layer PCB design. Operating at 1.2V, this memory upgrade is designed to meet or exceed Apple's and Intel's specifications.

Compatibility
iMac with Retina 5K display (27", August 2020)
iMac with Retina 5K display (27", March 2019)
Mac mini (November 2018)
Select Intel and AMD processor-based PCs
UPC: 810586031387

OWC DDR4 2666 MHz SO-DIMM Specs

Capacity
64 GB
Kit Configuration
2 x 32 GB
Speed
PC4-21300 (2666 MHz)
Memory Type
DDR4
DIMM Type
260-Pin SO-DIMM
Voltage
1.2 V
Heat Spreader
No
Built-in LED
None
Packaging Info
Package Weight
0.1 lb
Box Dimensions (LxWxH)
7 x 4.95 x 0.5"

OWC DDR4 2666 MHz SO-DIMM Reviews

Excellent service

By Lester
Rated 5 out of 5
Date: 2023-04-19

I received my purchase sooner than I thought I would. Thank you. You squeezed me in right before Passover!

OWC is the best...

By Richard
Rated 5 out of 5
Date: 2022-12-18

Been using OWC RAM in my Mac's since the Apple G5... solid and reliable...

failed, and lifetime warranty not honored

By Krzysztof
Rated 1 out of 5
Date: 2022-12-11

not reliable. this is the first time any ram chip failed on me in almost 4 decades of upgrading and building computers. owc tactics for warranty is to require invoice details and to require personal info to create account with them. it's a way to make obtaining service too difficult for customer. lifetime warranty means it doesn't matter when or where I bought it, or who I am.

seeing owc was the sale for me

By Ed
Rated 5 out of 5
Date: 2022-11-20

I am a relatively new customer; got the Payboo card, purchased some needed owc stuff, I'm a satisfied customer. I look forward to many future purchases.

Good RAM

By Bruno
Rated 5 out of 5
Date: 2022-10-25

Bought these to upgrade my new Imac 27 because the ones I've been using on my other Imac are working fine. Blazing fast. Easily installed myself.

Just as it should be

By Kent
Rated 5 out of 5
Date: 2022-08-29

Seldom do I need assistance from the team at B&H. This time, upgrading the memory on my MAC, I became a bit nervous so I called. Minutes later I had the advice I needed. I was actually talked down from spending too much for the needs I have. I am now upgraded and screaming ahead with my work. Thanks,

Best and Easiest!

By Lorena
Rated 5 out of 5
Date: 2023-01-30

It is so easy to upgrade memory in an Apple product. I upgraded my memory from 4GB in two slots to 16GB in two slots. It took 10 minutes. I am not a techie, but I can follow directions. I never pay high prices for upgraded memory, OWC products are 75% less costly than the name brand and performance is excellent.

New life for my iMac

By Michael
Rated 5 out of 5
Date: 2022-12-19

Super happy with these, went in and perform along side the factory originals perfectly.

See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS

Is it the same 64 gb kit that can be used in the ...

Is it the same 64 gb kit that can be used in the 2018 Mac mini?
Asked by: Tom
This memory is compatible with the Late 2018 Mac mini. The link that you provide is for 2 X 32GB sticks, the community answer is not correct.
Answered by: OWC Andy
Date published: 2020-04-03

Hello, Does B&H offer installation services for ...

Hello, Does B&H offer installation services for mac mini memory upgrade? is B&H an Apple Authorized Service Provider?
Asked by: Eric
We do not offer RAM installation on the Mac Mini, only for the iMac which is a much simpler procedure.
Answered by: Miguel
Date published: 2020-09-29

Hi, is this compatible with Imac 27' 19.1 2019 ...

Hi, is this compatible with Imac 27' 19.1 2019 with radeon pro 570x 4gb ?
Asked by: farid
Yes, it is compatible with the 19,1.
Answered by: OWC Andy
Date published: 2021-02-08

Will this memory work with Dell XPS 15 7590? ...

Will this memory work with Dell XPS 15 7590? Would like to put these 2 32 GB in to get 64 GB
Asked by: Douglas
From the specifications that I can find, it does appear that this kit should work in the Dell.
Answered by: OWC Andy
Date published: 2020-02-10

Would this work for the ASUS Zenbook Pro Duo ...

Would this work for the ASUS Zenbook Pro Duo laptop with the two OLED screens (1 and 1/2 screen laptop) as configurea with the i9 intel CPU?
Asked by: Jose
The RAM in the ZenBook Pro Duo UX581 is soldered to the motherboard and not upgradeable.
Answered by: OWC Andy
Date published: 2019-12-17

Can the 3.0ghz 2019 iMac upgrade to 64gb of ram? ...

Can the 3.0ghz 2019 iMac upgrade to 64gb of ram? Spec sheet says max ram is 32gb.
Asked by: Contour
My 2018 Mac mini 3.2ghz took the mirrored 32s great. I think the 2019 iMac will actually function with up to 128 gig of ram, but Mac does not support it once you've put your own ram in.
Answered by: Israel
Date published: 2022-02-03

Will this work for the Gigabyte Aero 15 OLED?

Will this work for the Gigabyte Aero 15 OLED?
Asked by: Francisco
Yes, this chip is compatible with the Aero 15.
Answered by: Michael
Date published: 2019-11-11

Will this memory work to replace the original RAM ...

Will this memory work to replace the original RAM of the Thinkpad X1 Extreme GEN 2?
Asked by: Jonathan
It may not. You may go to OWC website and find out which one is for the thinkpad. They have memory sticks for a comprehensive list of computers from different manufacturers. I got these for an iMac 2019.
Answered by: Anonymous
Date published: 2020-01-08
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